Bug 807756 - Fix bad gre paths in browser debugger jsm. r=gavin

browser/devtools/debugger/DebuggerUI.jsm

@@ -20,10 +20,10 @@ XPCOMUtils.defineLazyModuleGetter(this,
   "DebuggerServer", "resource://gre/modules/devtools/dbg-server.jsm");
 
 XPCOMUtils.defineLazyModuleGetter(this,
-  "Services", "resource:///modules/Services.jsm");
+  "Services", "resource://gre/modules/Services.jsm");
 
 XPCOMUtils.defineLazyModuleGetter(this,
-  "FileUtils", "resource:///modules/FileUtils.jsm");
+  "FileUtils", "resource://gre/modules/FileUtils.jsm");
 
 this.EXPORTED_SYMBOLS = ["DebuggerUI"];